1. How Missing Men Lead to Missing Women: Revising Natural Sex Ratios at Birth for the Fragile Male • Joshua K. Wilde, Oxford University.

2. Why should sex selection ultimately decline? • Christophe Z. Guilmoto, Institut de Recherche pour le Développement (IRD); Laura Rahm, Universitat de Barcelona.

3. Trends in Missing Females at Birth in India from 1981 to 2016: Analyses of 2·1 Million Birth Histories in Nationally Representative Surveys • Nandita Saikia, International Institute for Population Sciences (IIPS); Meh Catherine, University of Toronto; Jayanta Bora, VART Consulting; Mishra Bhaskar, UNICEF; Chandra Shailaja, GOI; Jha Prabhat, University of Toronto.